Remove the glass from the doors of a busy mall and what do you get? A hilarious prank! Watch as these poor people go to push a door open only to get a handful of air and a face full of awkward. This is such a simple prank to pull off and you get a great reaction.

Instead of micromanaging his workers, he should manage his ability to walk without looking like an idiot. At the same time, glass doors are just inherently dangerous. If all the other videos on the internet that depict people walking into them are any indication, glass doors are one of the most deadly office installations in the world. It's not even close. Add coffee to the walking scenario and you're basically a dead man.